. >> reporter: the center for science in the public interest says we need more federal involvement, not less, but critics draw the line at the lunch room door. >> we don't live in a one size fits all country. i think the result is going to be a lot of wasted food. >> they eat the fries and burger and kind of toss the vegetables and fruit. >> reporter: it's the same across the country where what's healthy is trashed. so in fairfax county the menu is put to a taste test. >> nothing goes on our menu that hasn't passed a taste party. >> reporter: fairfax, too bans junk food vending during school, but a report card by cspi gave virginia a d and maryland a d plus while schools that cracked down may face a backlash, not just from kids but parents revolting. >> they feel in some ways it's unamerican that their children should be able to make the choices that they want to make. >> reporter: unamerican for schools to ban what's bad for you? they can serve up whole wheat hamburger buns and post the calorie count, but they can't make kids eat it. sherry hi, fox 5 news. >> the food fight over -- she